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#188062
Buccaneer
Participant

    US Member

    The other cap fits the later style lowers on the SpeediTwin and SpeediFour motors.

    The broken one is off my 1950 Speeditwin, which I think
    was the last year for the 6039 models.
    Going by the good cap and the number stamped on it,
    it must be off of something prior?

    Prepare to be boarded!